<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>实例</title>
    <style>
        * {
            color: blue!important;
        }
        ul li{
            color: red;
        }
        .box{
            color: green;
        }
        #box1 {
            color: pink;
        }
    </style>
</head>
<body>
    <!-- 文字的颜色显示为蓝色 -->
    <ul>
        <li class="box" id="box1" style="color: orange;">我是大漂亮</li>
    </ul>
</body>
</html>